High Resolution X-Ray Imaging with Thin SrI2-Scintillator Screens

2013 ◽  
Vol 1576 ◽  
Author(s):  
Leonard Alaribe ◽  
Alex Fauler ◽  
Angelica Cecilia ◽  
Tomy Dos Santos Rolo ◽  
Michael Fiederle ◽  
...  
Keyword(s):  
High Resolution ◽  
Spatial Resolution ◽  
Effective Atomic Number ◽  
Light Yield ◽  
High Light ◽  
Excellent Performance ◽  
X Ray ◽  
X Ray Imaging ◽  
High Light Yield ◽  
Application Fields

ABSTRACTMuch has been reported on the excellent performance of the Eu2+ activated SrI2-scintillator in spectroscopic applications, like the high light yield (97 660 ph/MeV) and good energy resolution (2.7% FWHM at 662 keV). The exploitation of these properties for other application fields is limited by the hygroscopic nature of the SrI2. Single crystal scintillating screens exhibit high spatial resolution, this combined with the high density, high effective atomic number, and the high light yield of the SrI2 could be used for high resolution X-ray imaging.Some of the questions we tried to answer in this work are the following: owing to the excellent performance of the SrI2-scintillator in spectroscopic applications, how would it perform in X-ray imaging applications. X-ray images are described based on their (spatial) resolution and contrast, how would they look like when recorded using the SrI2-scintillator detector.First a packaging technique was developed that protected the hygroscopic screens during the measurements. Our results show a high resolution of the images obtained with thin SrI2-scintillator screens both in 2D radiography and 3D tomography measurements. With these results, we think that the SrI2-scinitillator is not only a candidate for spectroscopic applications, but also for high resolution X-ray imaging purposes.

Thallium magnesium chloride: A high light yield, large effective atomic number, intrinsically activated crystalline scintillator for X-ray and gamma-ray detection

2016 ◽  
Vol 55 (9) ◽  
pp. 090301 ◽  
Author(s):  
Yutaka Fujimoto ◽  
Masanori Koshimizu ◽  
Takayuki Yanagida ◽  
Go Okada ◽  
Keiichiro Saeki ◽  
...  
Keyword(s):  
Atomic Number ◽  
Magnesium Chloride ◽  
Gamma Ray ◽  
Effective Atomic Number ◽  
Light Yield ◽  
High Light ◽  
X Ray ◽  
High Light Yield

scholarly journals ZnWO4 Nanoparticle Scintillators for High Resolution X-ray Imaging

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1721
Author(s):  
Heon Yong Jeong ◽  
Hyung San Lim ◽  
Ju Hyuk Lee ◽  
Jun Heo ◽  
Hyun Nam Kim ◽  
...  
Keyword(s):  
Particle Size ◽  
Zinc Oxide ◽  
High Resolution ◽  
Tungsten Oxide ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
X Ray ◽  
X Ray Imaging ◽  
Average Size ◽  
And Tungsten

The effect of scintillator particle size on high-resolution X-ray imaging was studied using zinc tungstate (ZnWO4) particles. The ZnWO4 particles were fabricated through a solid-state reaction between zinc oxide and tungsten oxide at various temperatures, producing particles with average sizes of 176.4 nm, 626.7 nm, and 2.127 μm; the zinc oxide and tungsten oxide were created using anodization. The spatial resolutions of high-resolution X-ray images, obtained from utilizing the fabricated particles, were determined: particles with the average size of 176.4 nm produced the highest spatial resolution. The results demonstrate that high spatial resolution can be obtained from ZnWO4 nanoparticle scintillators that minimize optical diffusion by having a particle size that is smaller than the emission wavelength.

Highly Efficient Copper Halide Scintillators for High-Performance and Dynamic X-ray Imaging

Nanoscale ◽  
2021 ◽  
Author(s):  
Quan Zhou ◽  
Jiwei Ren ◽  
Jiawen Xiao ◽  
Lin Lei ◽  
Feiyi Liao ◽  
...  
Keyword(s):  
Homeland Security ◽  
High Performance ◽  
Low Cost ◽  
Light Yield ◽  
Medical Diagnostics ◽  
Dynamic Imaging ◽  
Copper Halide ◽  
X Ray ◽  
X Ray Imaging ◽  
High Light Yield

Progress towards high performance X-ray detection and dynamic imaging applications, including nondestructive inspection, homeland security, and medical diagnostics, requires scintillators with high light yield, reasonable decay time, low cost, and...

scholarly journals Devising novel methods for the controlled synthesis with morphology and size control of scintillator materials

2020 ◽  
Vol 8 (25) ◽  
pp. 8622-8634
Author(s):  
Nathaniel Hurley ◽  
Federico Moretti ◽  
Hanfei Yan ◽  
Edith Bourret-Courchesne ◽  
Yong S. Chu ◽  
...  
Keyword(s):  
High Resolution ◽  
Environmental Monitoring ◽  
Radiation Detection ◽  
Light Yield ◽  
Size Control ◽  
High Light ◽  
Controlled Synthesis ◽  
Important Class ◽  
High Light Yield ◽  
Novel Methods

Nanoscale scintillators represent an important class of materials underlying the functioning of high resolution, high ‘light yield’ radiation detection equipment, applicable for medicine in addition to security and environmental monitoring.

High Light Yield of Sr8(Si4O12)Cl8:Eu2+ under X-ray Excitation and Its Temperature-Dependent Luminescence Characteristics

2014 ◽  
Vol 26 (12) ◽  
pp. 3709-3715 ◽  
Author(s):  
Chunmeng Liu ◽  
Zeming Qi ◽  
Chong-Geng Ma ◽  
Pieter Dorenbos ◽  
Dejian Hou ◽  
...  
Keyword(s):  
Light Yield ◽  
High Light ◽  
Temperature Dependent ◽  
X Ray ◽  
High Light Yield ◽  
Luminescence Characteristics

High-resolution high-efficiency X-ray imaging system based on the in-line Bragg magnifier and the Medipix detector

2012 ◽  
Vol 20 (1) ◽  
pp. 153-159 ◽  
Author(s):  
Patrik Vagovič ◽  
Dušan Korytár ◽  
Angelica Cecilia ◽  
Elias Hamann ◽  
Libor Švéda ◽  
...  
Keyword(s):  
High Resolution ◽  
Spatial Resolution ◽  
High Efficiency ◽  
Imaging System ◽  
Single Photon ◽  
Signal To Noise Ratio ◽  
Photon Counting ◽  
Full Field ◽  
X Ray ◽  
X Ray Imaging

The performance of a recently developed full-field X-ray micro-imaging system based on an in-line Bragg magnifier is reported. The system is composed of quasi-channel-cut crystals in combination with a Medipix single-photon-counting detector. A theoretical and experimental study of the imaging performance of the crystals–detector combination and a comparison with a standard indirect detector typically used in high-resolution X-ray imaging schemes are reported. The spatial resolution attained by our system is about 0.75 µm, limited only by the current magnification. Compared with an indirect detector system, this system features a better efficiency, signal-to-noise ratio and spatial resolution. The optimal working resolution range of this system is between ∼0.4 µm and 1 µm, filling the gap between transmission X-ray microscopes and indirect detectors. Applications for coherent full-field imaging of weakly absorbing samples are shown and discussed.

A Large Area, High-Resolution a-Si:H Array for X-Ray Imaging

1994 ◽  
Vol 336 ◽  
Author(s):  
L.E. Antonuk ◽  
Y. El-Mohri ◽  
W. Huang ◽  
J. Siewerdsen ◽  
J. Yorkston ◽  
...  
Keyword(s):  
High Resolution ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Frame Rate ◽  
Large Area ◽  
X Ray ◽  
X Ray Imaging ◽  
Pixel Pitch ◽  
Resolution Requirements ◽  
Good Agreement

ABSTRACTThe development of a large area, high-resolution, a-Si:H x-ray imager is reported. The array has 1536×1920 pixels, a pixel pitch of 127μm, and an area of 19.5×24.4 cm2. Tne array is tailored to the high frame rate and high spatial resolution requirements of diagnostic x-ray imaging. The design of this array is presented and examples of x-ray images are illustrated. Initial Measurements of the sensor capacitance and pixel time constant properties are in good agreement with theoretical expectations. These results indicate that high-resolution arrays of this construction are capable of providing fluoroscopic images at rates of at least 30 frames per second.

Sign in / Sign up

Export Citation Format

Share Document